@misc{indiciae77185c394654,
  title = {Teiichispira, a new Early Ordovician gastropod genus},
  author = {Ellis Leon Yochelson and Clive R. Jones},
  year = {1968},
  doi = {10.3133/pp613b},
  url = {https://pubs.usgs.gov/publication/pp613B},
  note = {Source identifier: pp613B}
}